code: def test_wrap_spec(self):
      spec = wrap_spec(self.package)
      self.assertIsInstance(
          spec.loader.get_resource_reader(None), CompatibilityFiles
      )
  
imports: import io
  import unittest
  from importlib import resources
  from importlib.resources._adapters import CompatibilityFiles, wrap_spec
  from .None import util
label_desc: Use image node_id 17 for calling the CompatibilityFilesTests obj's underlying member method code with example usage: obj.test_wrap_spec() without return types